The algebra of Bessel sequences and means of frames in Hilbert spaces
نویسندگان
چکیده
منابع مشابه
Ultra Bessel sequences in direct sums of Hilbert spaces
In this paper, we establish some new results in ultra Bessel sequences and ultra Bessel sequences of subspaces. Also, we investigate ultra Bessel sequences in direct sums of Hilbert spaces. <span style="font-family: NimbusRomNo9L-Regu; font-size: 11pt; color: #000000; font-s...
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15 صفحه اولultra bessel sequences in direct sums of hilbert spaces
in this paper, we establish some new results in ultra bessel sequences and ultra bessel sequences of subspaces. also, we investigate ultra bessel sequences in direct sums of hilbert spaces.specially, we show that {( fi, gi)}∞ i=1 is a an ultra bessel sequencefor hilbert space h ⊕ k if and only if { fi}∞ i=1 and {gi}∞ i=1 are ultrabessel sequences for hilbert spaces h and k, respectively.
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ژورنال
عنوان ژورنال: Miskolc Mathematical Notes
سال: 2020
ISSN: 1787-2405,1787-2413
DOI: 10.18514/mmn.2020.3068